arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.00534astro-ph.GAastro-ph.SR
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作为益生元分子检测器的SKA

The SKA as a prebiotic molecule detector

Izaskun Jimenez-Serra, Jesus Martin-Pintado, Aran Insausti, Elena R. Alonso, Emilio J. Cocinero, Tyler L. Bourke

摘要:

生命起源的理论之一提出,相当大一部分的生命前物质可能是在41亿至38亿年前从太空到达地球的。这表明,这些益生元化合物可能起源于星际空间,后来被合并到太阳系的小天体和微行星中。最近在星际介质中发现的前生物分子,如羟胺和乙醇胺,有力地支持了这一假设。然而,一些物种,如糖,对核糖核苷酸的合成和代谢过程的关键,仍然有待于在太空中发现。平方公里阵列(SKA)在厘米波长下无与伦比的灵敏度将能够检测比现有仪器更复杂和更重的益生元分子。在这方面的贡献,我们说明了潜在的SKA检测单糖与三个和四个碳原子,使用适度的投资观察时间。

英文摘要:

One of the theories for the origin of life proposes that a significant fraction of prebiotic material could have arrived to Earth from outer space between 4.1 and 3.8 billion years ago. This suggests that those prebiotic compounds could have originated in interstellar space, to be later on incorporated to small Solar-system bodies and planetesimals. The recent discovery of prebiotic molecules such as hydroxylamine and ethanolamine in the interstellar medium, strongly supports this hypothesis. However, some species such as sugars, key for the synthesis of ribonucleotides and for metabolic processes, remain to be discovered in space. The unmatched sensitivity of the Square Kilometer Array (SKA) at centimeter wavelengths will be able to detect even more complex and heavier prebiotic molecules than existing instrumentation. In this contribution, we illustrate the potential of the SKA to detect simple sugars with three and four carbon atoms, using a moderate investment of observing time.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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